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Univariate analysis to identify predictors of downstaging
Determined by Pearson's chi-square or Fisher's extract test.
AV, anal verge; CA, carbohydrate antigen; CEA, carcinoembryonic antigen; CRT, chemoradiotherapy; FL, 5-fluorouracil and leucovorin; UFT, tegafur/uracil; WBC, white blood cell.
a)p < 0.05.
